Linux (Dolphin File Manager) Readable Previews

I have a ton of ODT files and I like to preview them in Dolphin when I’m searching for something specific. However, the size of the preview in the side panel (not the default Dolphin preview below “Places”, but on the split-apart side pane) aren’t big enough to read. I find this odd considering that previews for icons in this same side pane preview are almost twice as high (and twice as wide).

One of the chat-bots said I might look into LibreOffice’s thumbnail tools, but from there, the info it gave me seemed dodgy. Can anyone tell me how to get my ODT previews large enough to read a document with a 12-point font?